Considered to be the most widespread manual of scholastic theology in the Middle Ages, this important work may have been written by St Albert the Great (1193?-1280) but its authorship by the great Dominican theologian has never been ascertained. Many scholars believe it to have been penned by fellow-Dominican Hugh Ripelin of Strasburg (ca. 1205 - ca. 1270). The work is divided into seven parts treating different theological aspects of the Catholic faith.